The bigguns1.zip file you have requested: Modifications / Big Guns / Big Guns v1.0 - 4.03mb is not available. Perhaps try browsing all files for the game Quake and upload any files you want to share or are missing. This is the only information we could locate:
The first version of the Big Guns mod (9/2/01) Weapon scheme of this version as follows: 1-Axe = I'll change this later. 2-Pistol = A flaregun/pistol combo. Not a 9mm like most games. 3-AssaultRifle= Eats up your ammo like crazy. 4- The first version of the Big Guns mod (9/2/01).